Cancel prerender if any of the visited URLs are https.

chrome/browser/prerender/prerender_resource_handler.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_PRERENDER_PRERENDER_RESOURCE_HANDLER_H_
 #define CHROME_BROWSER_PRERENDER_PRERENDER_RESOURCE_HANDLER_H_
 #pragma once
 
 #include <string>
 
@@ skipping 74 matching lines @@
   virtual ~PrerenderResourceHandler();
 
   void RunCallbackFromUIThread(const GURL& url,
                                const std::vector<GURL>& alias_urls,
                                const GURL& referrer);
   void StartPrerender(const GURL& url,
                       const std::vector<GURL>& alias_urls,
                       const GURL& referrer);
 
   // The set of URLs that are aliases to the URL to be prerendered,
-  // as a result of redirects.
+  // as a result of redirects, including the final URL.
   std::vector<GURL> alias_urls_;
   GURL url_;
   scoped_refptr<ResourceHandler> next_handler_;
   scoped_refptr<PrerenderManager> prerender_manager_;
   scoped_ptr<PrerenderCallback> prerender_callback_;
 
   // Used to obtain the referrer, but only after any redirections occur, as they
   // can result in the referrer being cleared.
   const net::URLRequest& request_;
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderResourceHandler);
 };
 
 }  // namespace prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_RESOURCE_HANDLER_H_